#include <stdio.>
struct Square {
     int edge;
     int area;
};
int main()  {
    struct square s;
    scanf("%d",&s.edge);
    if(s.edge<=0)  {
        printf("Invalid Input");
    }
    else {
        s.area =s.edge  * s.edge;
        printf("%d square meters",s.area);
    }
    return 0;
    }